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Urticaria pigmentosa - Overview

Alternative Names

Mastocytosis; Mastocytoma

Definition of Urticaria pigmentosa:

Urticaria pigmentosa is a skin disease that produces lesions and intense itching. If you rub the lesions, hives may develop.

Causes, incidence, and risk factors:

Urticaria pigmentosa is one of several forms of mastocytosis, which occurs where there are too many inflammatory cells (mast cells) in the skin.

Urticaria pigmentosa is most often seen in children, but it can also occur in adults.

  • Reviewed last on: 10/28/2008
  • Michael Lehrer, M.D., Department of Dermatology, University of Pennsylvania Medical Center, Philadelphia, PA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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